23402980729 has 2 divisors, whose sum is σ = 23402980730. Its totient is φ = 23402980728.

The previous prime is 23402980663. The next prime is 23402980801. The reversal of 23402980729 is 92708920432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13443938704 + 9959042025 = 115948^2 + 99795^2 .

It is a cyclic number.

It is not a de Polignac number, because 23402980729 - 2¹¹ = 23402978681 is a prime.

It is not a weakly prime, because it can be changed into another prime (23402980229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701490364 + 11701490365.

It is an arithmetic number, because the mean of its divisors is an integer number (11701490365).

Almost surely, 2^23402980729 is an apocalyptic number.

It is an amenable number.

23402980729 is a deficient number, since it is larger than the sum of its proper divisors (1).

23402980729 is an equidigital number, since it uses as much as digits as its factorization.

23402980729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 23402980729 in words is "twenty-three billion, four hundred two million, nine hundred eighty thousand, seven hundred twenty-nine".